FIELD OF THE INVENTION
[0001] The present invention relates to the field of domestic bird production, and in particular,
methods for feeding domestic birds to improve nutritional value, flavor, tenderness
and/or consumer acceptability.
BACKGROUND OF THE INVENTION
[0002] There have been numerous studies on feeding long chain omega-3 fatty acids to broiler
chickens. The purpose of these studies was primarily to enrich the meat with omega-3
fatty acids in order to provide consumers with a non-fish based source of these fatty
acids in their diets. In general, large quantities (≥ approximately 6 g) of long chain
omega-3 fatty acids were fed to the birds during the production period. As used herein,
the tenns production period and production cycle referred to the life cycle of the
bird until slaughter. The researchers reported increased levels of long chain omega-3
fatty acids in the meat and flavor scores the same as or worse than control (non-enriched)
broiler meat. The inventors are unaware of any studies reporting improved tenderness,
taste or consumer acceptability of broiler meat when poultry are fed long chain omega-3
and/or omega-6 fatty acids.
SUMMARY OF THE INVENTION
[0003] In accordance with the present invention, a feeding method is provided for improving
at least one of flavor, tenderness or overall consumer acceptability of fowl meat.
As used herein, the term fowl meat means the meat of a bird, and in particular a domesticated
bird that is fed a controlled diet. The method of the present invention includes the
steps of providing a concentrated source of at least one of omega-3 highly unsaturated
fatty acid (HUFA) or omega-6 HUFA, and feeding the concentrated source of at least
one of omega-3 HUFA or omega-6 HUFA to fowl in low concentrations resulting in improvements
in at least one of flavor, tenderness or overall consumer acceptability of the meat
of the fowl. An additional advantage of the present invention is that the nutritional
value of the fowl meat can also be improved, for example, by increasing the level
of omega-3 HUFA and/or omega-6 HUFA in the meat.
[0004] As used herein, the terms highly unsaturated fatty acid or HUFA mean a fatty acid
with four or more unsaturated bonds. Examples of HUFAs include arachidonic acid (ARA(n-3),
C20:4n-3 or ARA(n-6), C20:4n-6); stearidonic acid (SDA, C18:4n-3); eicosapentaenoic
acid (EPA, C20:5n-3); docosahexaenoic acid (DHA, C22:6n-3) and docosapentaenoic acid
(DPA(n-3), C22:5n-3 or DPA(n-6), C22:5n-6).
[0005] Preferably, a concentrated source of both omega-3 HUFA and omega-6 HUFA is provided
and is fed to the fowl. Preferably, the ratio of omega-3 HUFA to omega-6 HUFA is in
the range from about 2:1 to about 4:1. Preferably, the omega-3 HUFA is selected from
the group consisting of DHA, EPA, DPA(n-3), ARA(n-3), SDA and mixtures thereof. Preferably
the omega-6 HUFA is selected from the group consisting of ARA(n-6), DPA(n-6) and mixtures
thereof. More preferably, DHA and DPA(n-6) are provided and are fed to the fowl. More
preferably, DPA(n-3) and DPA(n-6) are provided and are fed to the fowl.
[0006] Preferably, the concentrated source of at least one of omega-3 HUFA or omega-6 HUFA
is provided and fed to said fowl predominantly in the final 50 percent of the fowl
production (life) cycle and more preferably, the concentrated source of at least one
of omega-3 HUFA or omega-6 HUFA is provided and fed to said fowl predominantly in
the final 25 percent of the fowl production (life) cycle. As used herein, the term
predominantly means at least 50 percent, more preferably at least 66 percent and more
preferably at least 75 percent. A feeding protocol is disclosed in
U.S. Patent No. 6,054,147 entitled "A Method For Increasing The Incorporation Efficiency Of Omega-3 Highly
Unsaturated Fatty Acid In Poultry Meat", which is incorporated herein in its entirety
by reference.
[0007] Preferably, the concentrated source of at least one of omega-3 HUFA or omega-6 HUFA
is provided and fed to the fowl during its production cycle in an amount comprising
from about 0.2 to about 2.4 grams of HUFA per kg of the final body weight of the fowl,
more preferably in an amount comprising from about 0.4 to about 1.75 grams of HUFA
per kg of the final body weight of the fowl, more preferably in an amount comprising
from about 0.6 to about 1.25 grams of HUFA per kg of the final body weight of the
fowl, and more preferably in an amount comprising from about 0.7 to about 1 grams
of HUFA per kg of the final body weight of the fowl.
[0008] Preferably, at least 25 percent of the total fatty acids in the HUFA source added
to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6 HUFA or mixtures
thereof, more preferably at least 30 percent of the total fatty acids in the HUFA
source added to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6
HUFA or mixtures thereof, more preferably at least 40 percent of the total fatty acids
in the HUFA source added to the fowl ration and consumed by the fowl are omega-3 HUFA,
omega-6 HUFA or mixtures thereof, and more preferably at least 50 percent of the total
fatty acids in the HUFA source added to the fowl ration and consumed by the fowl are
omega-3 HLTFA, omega-6 HUFA or mixtures thereof.
[0009] Preferably, the domesticated bird or fowl is selected from the group consisting of
broiler chickens, roaster chickens, turkeys, guinea hens, quail, ducks and geese,
more preferably the domesticated bird or fowl is selected from the group consisting
of broiler chickens, roaster chickens and turkeys.
[0010] Preferably, the omega-3 or omega-6 HUFA are provided in the fowl feed in the form
of triglycerides, phospholipids, ethyl esters of the fatty acids or mixtures thereof.
[0011] Preferably, the omega-3 or omega-6 HUFA is from a microbial source, animal source
(including fish oil or meal) or a genetically engineered plant source, and more preferably
the omega-3 or omega-6 HUFA is from
Schizochytrium sp or
Ctypthecodinium sp.
[0012] Preferably, the method of the present invention results in the enrichment of the
meat in at least one HUFA, more preferably in the enrichment of the meat in at least
one of DHA, SDA, EPA, DPA(n-3), DPA(n-6), ARA(n-3) or ARA(n-6), more preferably in
the enriclunent of the meat in at least one omega-3 fatty acid and more preferably
in the enrichment of the meat in DHA.
DETAILED DESCRIPTION OF THE INVENTION
[0013] While conducting tests on enriching poultry meat with omega-3 fatty acids, the option
of feeding much lower omega-3 and omega-6 long chain HUFA, contents in their rations
than had previously been tested was investigated. When a test panel evaluated cooked
meat samples, it was unexpectedly found that the enriched meat had higher taste, tenderness,
and overall acceptability scores than the control meat. Thus it was found that the
meat could be significantly enriched with omega-3 fatty acids (with about 2 to 6 times
the amount of long chain omega-3 fatty acids found in regular meat) by providing nutritionally
significant levels of long chain omega-3 fatty acids. This is an additional benefit
to consumers because of the well-known health benefits of long chain omega-3 fatty
acids. At the same time however, the overall consumer acceptability of the meat as
compared to regular meat could also be improved. Another benefit is that the overall
polyunsaturated fat content of the meat is increased also improving the nutritional
quality of the meat for consumers.
[0014] While not wishing to be bound by any theory, the benefit of low levels of long chain
omega-3 and omega-6 HUFA in poultry rations is most likely due to DHA and in this
case DPA(n-6) substituting for shorter chain and less unsaturated fatty acids in the
phospholipids of the meat. This substitution could improve the fluidity of the phospholipids
membranes and directly impact the other functional properties of the meat. This effect
of low levels of enrichment has not been observed previously possibly because of the
emphasis on high levels of enrichment, higher levels of incorporation may lead to
too much fluidity in the membranes adversely affecting functionality and/or cause
enrichment of significant amounts of triglycerides in the meat which are less stable
leading to organoleptic problems. Additionally many previous studies used less concentrated
forms of omega-3 fatty acids such as fish oil that has about 20-25% omega-3 fatty
acids as % total fatty acids. The other 75% of the oil is made up of saturated and
monounsaturated and some polyunsaturated fatty acids that can also incorporate in
the meat in an untargeted manner causing unwanted functionality problems. By using
a more concentrated fonn of highly unsaturated fatty acids in the omega-3 and omega-6
series, in one embodiment about 55% of the fatty acids in the LCHUFA source were DHA(n-3)
and DPA(n-6) fatty acids, the enrichment of the phospholipids can be directed more
accurately to substitution by these highly unsaturated fatty acids. Additionally it
is possible that use of the longest chain fatty acids in the omega-3 and omega-6 series
provides fatty acids with the most potential for influencing the fluidity of the phospholipid-based
membranes in the meat because of the high level of unsaturation in these fatty acids
and because of the positive impact of the tertiary structure of these fatty acids
(e.g. helical structure of DHA making it able to tightly pack in membranes like a
saturated fatty acid but have the flexibility of a highly unsaturated fatty acid.
PREFERRED EMBODIMENTS
[0015] In the omega-3 series DHA, EPA, DPA, ARIA and SDA can be used but more preferred
are DHA and DPA(n-3). In the omega-6 series sources of ARA and DPA(n-6) can be used
but DPA(n-6) is more preferred.
[0016] The HUFA supplement preferably contains long chain omega-3 fatty acids, more preferably
DPA, more preferably DHA and a long chain omega-6 source, most preferably DHA(n-3)
and DPA(n-6). Preferably, low levels of omega-3, preferably DHA, are fed to the fowl.
Preferably, some long chain omega-6, preferably DPA(n-6), is fed to the fowl. Preferably,
the ratio of omega-3 HUFA to omega-6 HUFA is in the range from about 2:1 to about
4:1. Preferably, the long chain omega-3 and omega-6 fatty acids are fed to the fowl
during the last half of the production cycle and more preferably during the last 25%
of the production cycle.
[0017] The amount of long chain omega-3 and omega-6 HUFAs fed during the production cycle
are preferably in the range from about 0.2 to about 2.4 g/kg final body weight, more
preferably from about 0.4 to about 1.75, more preferably from about 0.6 to about 1.25,
and more preferably from about 0.7 to about 1.0 g/kg final body weight. Preferably,
a concentrated form of long chain omega-3 and/or omega-6 polyunsaturated fatty acids
is fed to the fowl.
[0018] Preferably, greater than 25% of the total fatty acids are omega-3 and/or omega-6
long chain HUFA, more preferably more than 30%, even more preferably 40%, and most
preferably greater than 50%.
EXAMPLE
[0019] Example 1. Effect of low levels of long chain omega-3 and omega-6 fatty acids on
the taste, tenderness and overall consumer acceptability of poultry meat.
[0020] A study was conducted to determine the effect of feeding low levels of long chain
omega-3 and omega-6 fatty acids on the organoleptic properties of meat and determine
the enrichment levels of these fatty acids in the resulting meat. Broiler chickens
were selected as the experimental production animal.
[0021] The broiler strain utilized was Avian (female) x Ross (male) cross. This strain has
a capacity for high performance and represents normal genetic stock found in the poultry
industry.
[0022] Broilers were housed at hatch, sexed at the research site, and immediately began
the dietary treatments. The pens provided 0.75 ft
2 per broiler chicken. The trial ran from 0-49 days of age with the long chain omega-3/omega-6
fatty acid source added to the rations from day 36-day 49. There were three treatments
in the trial with 10 replications per treatment (70 broilers per replication) for
a total of 2100 birds on study. The treatments are outlined in Table 1. The broilers
were blocked by randomizing weights across all pens ensuring that weights would be
equal among pens.
[0023] Commercial type feeds were formulated and fed (crumbles in starter ration and pelleted
in grower and finisher rations) (Table 2.). Normal rations (without test material)
were fed from 0-35 days of age. Test material was added to the rations from day 36
to market age (49 days of age) during the Grower II and Finisher phases of the study.
Formulations were prepared with the following considerations:
- 1) treatments were formulated to be isonitrogenous and isocaloric as well as iso-
all other nutrients.
- 2) Grower II ration used the same formulation as Grower I but with the added source
of DHA and DPA(n-6).
- 3) The diets conformed to industry standards and met or exceeded the nutritional requirements
set forth in: Nutrient Requirements of Poultry, 9th rev. ed., National Research Council, 1998.
- 4) Sacox (Salinomycin (60) manufactured by Hoechst: 60 grams per ton of feed) was
used in the starter and grower rations and BMD (manufactured by Alfarma: 50 grams
per ton of feed) was used in all feeds.
[0024] The nutrient requirements for the formulated feeds are summarized in Table 3. Body
weights and feed consumption were measured during the study. At the end of the trial
the animals were sacrificed and samples of breast and thigh meat collected for fatty
acid analysis by gas chromatography. Breast and thigh samples were also frozen and
sent to an independent university laboratory (Dept. of Food Science, Colorado State
University) for organoleptic analysis by a consumer taste panel. Samples of meat were
sent to the University of Colorado Dept. of Food Science for organoleptic analysis.
[0025] For the consumer taste panel (100 untrained panelists) a Rank Order of Preference
Test was used to evaluate the samples. Meat testing is disclosed in the AMSA Research
Guide for Cookery, Sensory Evaluation and Instrumental Tenderness Measurements of
Fresh Meat (1995), which is incorporated herein by reference in its entirety. A limit
of 4 samples for analysis were selected to prevent panel member sample over-load.
Frozen meat samples were thawed and then baked at 350°F to an endpoint temperature
of 165°F (internal). Approximately 7g samples of each treatment were presented to
panelists simultaneously in 60 g portion cups. Scorecards were attached. The panelists
were asked to rate the samples for flavor, tenderness and overall acceptability. For
each characteristic there was a rating scale of 1-4: 1 = like best; 2 = like moderately;
3 = like slightly; 4 = like least. The results were analyzed by Chi square analysis.
For the chicken breast samples, the results indicated a Rank order of Preference of
treatment 2, 4, 1 (control). Results were significant at the p<0.05 level for these
comparisons. For the chicken thigh samples, the results indicated a Rank order of
Preference of treatment 2, 4, 1 (control). Results were significant at the p<0.05
level for these comparisons. In summary, the results indicated that adding HUFA to
the broiler rations increased taste, tenderness and overall acceptability of the breast
meat and increased tenderness in the thigh meat without compromising taste or overall
acceptability.
Table 1. Study design. The DHA(n-3) and DPA(n-6) fatty acids were added as a poultry
feed ingredient in the form of drum-dried
Schizochytrium sp. cells containing approximately 22.7% DHA and 7.6% DPA(n-6) as % dry weight.
Treatment # |
Amount of long chain omega-3 and omega-6 fatty acids fed to the chickens. |
1 |
control; 0.0 g DHA + 0.0 g DPA(n-6) (vitamin E level = 15 IU/kg feed) |
2 |
1.33 g DHA + 0.44 g DPA(n-6): 85% fed in grower II/15% in finisher (vitamin E=23 IU/kg
feed) |
3 |
4.0 g DHA + 1.33 g DPA(n-6): 85% fed in grower II/15% in finisher (vitamin E=23 IU/kg
feed) |
Table 2. Feeding program
Ration |
Fed on Trial Days |
Starter |
0-21 |
Grower I |
22-35 |
Grower II |
36-43 |
Finisher |
44-49 |
Table 3. Nutrient requirement for the formulated feeds.
Nutrient/Ingredient |
Starter Ration |
Grower I & II Ration |
Finisher Ration |
Energy (kcal/kg) |
3086 |
3142 |
3197 |
Protein (%) |
20.0 |
19.0 |
18.0 |
Lysine (%) available |
1.20 |
1.05 |
0.95 |
Meth + Cyst (5) |
1.00 |
0.85 |
0.80 |
Calcium (%) |
0.90 |
0.84 |
0.80 |
Total Phosphorus (%) |
0.45 |
0.42 |
0.40 |
Sodium (%) |
0.20 |
0.18 |
0.15 |
Choline(%) |
1.35 |
1.15 |
0.95 |
Animal fat for dust restriction |
min 1% |
min 1% |
min 1% |
Table 4. DHA enrichment levels (mg/100g meat) obtained in the poultry meat.
|
Breast |
Thigh |
Treatment 1(Control) |
10.8 |
19.1 |
Treatment 1 |
37.4 |
75.6 |
Treatment 2 |
61.1 |
79.2 |
Table 5. Consumer Taste Panel Results
Least significant Differences for Flavor of Chicken Breasts |
Chicken Breasts |
Flavor |
Comparisons |
Significance |
Treatment 1 (control) |
249 |
|
|
Treatment 2 |
212 |
249-212 = 37 |
p<0.05 |
|
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
237 |
249-237= 12 |
N.S. |
|
|
(Tmt 1 vs. 3) |
|
Chi square |
29.91 |
|
|
[0026] For flavor, rank order of preference - Treatment 2, 3, 1 (control)
Least significant Differences for Tenderness of Chicken Breasts
Chicken Breasts |
Tenderness |
Comparisons |
Significance |
Treatment 1 (control) |
265 |
|
|
Treatment 2 |
204 |
265-204 = 61 |
p<0.05 |
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
225 |
265-225= 40 |
p<0.05 |
|
(Tmt 1 vs. 3) |
|
Chi square |
36.61 |
|
|
[0027] For tenderness, rank order of preference - Treatment 2, 3, 1 (control)
Least significant Differences for Overall Acceptability of Chicken Breasts
Chicken Breasts |
Overall Acceptability |
Comparisons |
Significance |
Treatment 1 (control) |
257 |
|
|
Treatment 2 |
207 |
257-207 = 50 |
p<0.05 |
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
229 |
257-229= 28 |
N.S. |
|
(Tmt 1 vs. 3) |
|
Chi square |
33.53 |
|
|
[0028] For overall acceptability, rank order of preference - Treatment 2, 3, 1 (control)
Least Significant Differences for Flavor of Chicken Thighs
Chicken Thighs |
Flavor |
Comparisons |
Significance |
Treatment 1 (control) |
251 |
|
|
Treatment 2 |
219 |
251-219 = 32 |
N.S. |
|
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
227 |
251-227= 24 |
N.S. |
|
|
(Tmt 1 vs. 3) |
|
Chi square |
25.80 |
|
|
[0029] For flavor, rank order of preference - Treatment 2, 3, 1 (control)
Least Significant Differences for Tenderness of Chicken Thighs
Chicken Thighs |
Tenderness |
Comparisons |
Significance |
Treatment 1 (control) |
254 |
|
|
Treatment 2 |
200 |
254-200 = 54 |
p<0.05 |
|
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
230 |
254-230= 24 |
N.S. |
|
|
(Tmt 1 vs. 3) |
|
Chi square |
43.61 |
|
|
[0030] For tenderness, rank order of preference - Treatment 2, 3, 1 (control)
Least significant Differences for Overall Acceptability of Chicken Thighs
Chicken Thighs |
Overall Acceptability |
Comparisons |
Significance |
Treatment 1 (control) |
244 |
|
|
Treatment 2 |
213 |
244-213 = 31 |
N.S. |
|
(Tmt 1 vs. 2) |
|
Treatment 3 |
224 |
244-224= 20 |
N.S. |
|
(Tmt 1 vs. 3) |
|
Chi square |
41.24 |
|
|
[0031] For overall acceptability, rank order of preference - Treatment 2, 3, 1 (control)
[0032] The present invention, in various embodiments, includes components, methods, processes,
systems and/or apparatus substantially as depicted and described herein, including
various embodiments, subcombinations, and subsets thereof. Those of skill in the art
will understand how to make and use the present invention after understanding the
present disclosure. The present invention, in various embodiments, includes providing
devices and processes in the absence of items not depicted and/or described herein
or in various embodiments hereof, including in the absence of such items as may have
been used in previous devices or processes,
e.g., for improving performance, achieving ease and/or reducing cost of implementation.
[0033] The foregoing discussion of the invention has been presented for purposes of illustration
and description. The foregoing is not intended to limit the invention to the form
or forms disclosed herein. Although the description of the invention has included
description of one or more embodiments and certain variations and modifications, other
variations and modifications are within the scope of the invention,
e.g., as may be within the skill and knowledge of those in the art, after understanding
the present disclosure. It is intended to obtain rights which include alternative
embodiments to the extent permitted, including alternate, interchangeable and/or equivalent
structures, functions, ranges or steps to those claimed, whether or not such alternate,
interchangeable and/or equivalent structures, functions, ranges or steps are disclosed
herein, and without intending to publicly dedicate any patentable subject matter.
[0034] Various preferred features and embodiments of the present invention will now be described
with reference to the following numbered paragraphs (paras).
- 1. A feeding method for improving at least one of flavor, tenderness or overall consumer
acceptability of fowl meat comprising the steps:
- (a) providing a concentrated source of at least one of omega-3 highly unsaturated
fatty acid (HUFA) or omega-6 HUFA;
- (b) feeding said concentrated source of at least one of omega-3 HUFA, or omega-5 HUFA
to fowl in low concentrations resulting in improvements in at least one of flavor,
tenderness or overall consumer acceptability of the meat of said fowl.
- 2. The method of para 1 wherein a concentrated source of both omega-3 HUFA and omega-6
HUFA is provided and is fed to said fowl.
- 3. The method of para 1 wherein said omega-3 HUFA is selected from the group consisting
of DHA, EPA, DPA(n-3), ARA(n-3), SDA and mixtures thereof.
- 4. The method of para 1 wherein said omega-6 HUFA is selected from the group consisting
of ARA(n-6), DPA(n-6) and mixtures thereof.
- 5. The method of para 2 wherein DHA and DPA(n-6) are provided and are fed to said
fowl.
- 6. The method of para 2 wherein DPA(n-3) and DPA(n-6) are provided and are fed to
said fowl.
- 7. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl predominantly in the final 50
percent of the fowl production cycle.
- 8. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl predominantly in the final 25
percent of the fowl production cycle.
- 9. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl in an amount comprising from
about 0.2 to about 2.4 grams of HUFA per kg of the final body weight of the fowl.
- 10. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl in an amount comprising from
about 0.4 to about 1.75 grams of HUFA per kg of the final body weight of the fowl.
- 11. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl in an amount comprising from
about 0.6 to about 1.25 grams of HUFA per kg of the final body weight of the fowl.
- 12. The method of para 1 wherein said concentrated source of at least one of omega-3
HUFA or omega-6 HUFA is provided and fed to said fowl in an amount comprising from
about 0.7 to about 1 grams of HUFA per kg of the final body weight of the fowl.
- 13. The method of para 1 wherein at least 25 percent of the total fatty acids in the
HUFA source added to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6
HUFA or mixtures thereof.
- 14. The method of para 1 wherein at least 30 percent of the total fatty acids in the
HUFA source added to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6
HUFA or mixtures thereof.
- 15. The method of para 1 wherein at least 40 percent of the total fatty acids in the
HUFA source added to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6
HUFA or mixtures thereof.
- 16. The method of para 1 wherein at least 50 percent of the total fatty acids in the
HUFA source added to the fowl ration and consumed by the fowl are omega-3 HUFA, omega-6
HUFA or mixtures thereof.
- 17. The method of para 1 wherein said fowl is selected from the group consisting of
broiler chickens, roaster chickens, turkeys, guinea hens, quail, ducks and geese.
- 18. The method of para 1 wherein said fowl is selected from the group consisting of
broiler chickens, roaster chickens and turkeys.
- 19. The method of para 2 wherein said omega-3 or omega-6 HUFA are provided in the
fowl feed in the form of triglycerides, phospholipids, ethyl esters of the fatty acids
or mixtures thereof.
- 20. The method of para 2 wherein said omega-3 or omega-6 HUFA is from a microbial
source, animal source or a genetically engineered plant source.
- 21. The method of para 20 wherein said omega-3 or omega-6 HUFA is from Schizochytrium sp or Crypthecodinium sp.
- 22. The method of para 1, wherein said method further results in the enrichment of
the meat in at least one HUFA.
- 23. The method of para 1,wherein said method further results in the enrichment of
the meat in at least one of DHA, SDA, EPA, DPA(n-3), DPA(n-6), ARA(n-3) or ARA(n-6).
- 24. The method of para 1,wherein said method further results in the enrichment of
the meat in at least one omega-3 fatty acid.
- 25. The method of para 1,wherein said method further results in the enrichment of
the meat in DHA.
- 26. The method of para 2,wherein the ratio of omega-3 HUFA to omega-6 HUFA is in the
range from about 2:1 to about 4:1.
- 27. The method of para 1,wherein said method results in improvements in at least two
of flavor, tenderness or overall consumer acceptability of the meat of said fowl.
- 28. The method of para 1,wherein said method results in improvements in all three
of flavor, tenderness or overall consumer acceptability of the meat of said fowl.
- 29. The method of para 1,wherein a Rank Order of Preference Test is used to evaluate
at least one of flavor, tenderness or overall consumer acceptability of the meat of
said fowl.
- 30. A feeding method for improving at least one of flavor, tenderness or overall consumer
acceptability of fowl meat comprising the steps:
- (a) providing a concentrated source of at least one of omega-3 highly unsaturated
fatty acid (HUFA) or omega-6 HUFA;
- (b) feeding said concentrated source of at least one of omega-3 HUFA, or omega-6 HUFA
to said fowl in an amount comprising from about 0.2 to about 2.4 grams of HUFA per
kg of the final body weight of the fowl during the production cycle of said fowl resulting
in improvements in at least one of flavor, tenderness or overall consumer acceptability
of the meat of said fowl.
- 31. A feeding method for improving at least one of flavor, tenderness or overall consumer
acceptability of fowl meat comprising the steps:
- (a) providing a concentrated source of omega-3 highly unsaturated fatty acid (HUFA)
and omega-6 HUFA;
- (b) feeding said concentrated source of omega-3 HUFA and omega-6 HUFA to said fowl
in an amount comprising from about 0.2 to about 2.4 grams of HUFA per kg of the final
body weight of the fowl during the production cycle of said fowl resulting in improvements
in at least one of flavor, tenderness or overall consumer acceptability of the meat
of said fowl.
1. A fowl meat comprising an enriched level of at least one highly unsaturated fatty
acid (HUFA), wherein the fowl meat comprises at least one of improved flavor, tenderness
or overall consumer acceptability compared to a fowl meat not comprising an enriched
level of HUFA.
2. The fowl meat of claim 1, wherein the fowl meat comprises at least two of improved
flavor, tenderness or overall consumer acceptability.
3. The fowl meat of claim 1 OR 2, wherein the fowl meat comprises improved flavor, tenderness
and overall consumer acceptability.
4. The fowl meat of any one of claims 1-3, wherein a Rank Order of Preference Test is
used to evaluate at least one of flavor, tenderness or overall consumer acceptability
of the fowl meat.
5. The fowl meat of any one of claims 1-4, wherein the at least one HUFA comprises omega-3
HUFA or omega-6 HUFA.
6. The fowl meat of claim 5, wherein the omega-3 HUFA comprises DHA, EPA, DPA (n-3),
ARA (n-3), or SDA.
7. The fowl meat of claim 5, wherein the omega-6 HUFA comprises ARA (n-6) or DPA (n-6).
8. The fowl meat of any one of claims 1-7 wherein the fowl is selected from the group
consisting of broiler chickens, roaster chickens, turkeys, guinea hens, quail, ducks
and geese.
9. The fowl meat of claim 8 wherein the fowl is selected from the group consisting of
broiler chickens, roaster chickens and turkeys.
10. The fowl meat of any one of claims 1-9, wherein the fowl meat was produced by a method
comprising
feeding to a fowl a source of at least one of omega-3 highly unsaturated fatty acid
(HUFA) or omega-6 HUFA in an amount comprising from 0.2 to 1.25 grams of HUFA per
kg of the final body weight of the fowl at the end of the production cycle;
wherein the source comprises greater than 40 percent of the total fatty acids as omega-3
HUFA, omega-6 HUFA, or mixtures thereof.
11. The fowl meat of claim 10, wherein a source of both omega-3 HUFA and omega-6 HUFA
is fed to the fowl.
12. The fowl meat of claim 11, wherein either DHA and DPA (n-6) or DPA (n-3) and DPA (n-6)
are fed to the fowl.
13. The fowl meat of any one of claims 10-12, wherein the source of at least one of omega-3
HUFA or omega-6 HUFA is fed to the fowl predominantly in the final 50 percent of the
fowl production cycle.
14. The fowl meat of any one of claims 10-13, wherein the omega-3 or omega-6 HUFA is from
a microbial source, animal source or a genetically engineered plant source.
15. The fowl meat of any one of claim 14, wherein the omega-3 or omega-6 HUFA is from
Schizochytrium sp or Crypthecodinium sp.